Determine whether each pair of compounds forms a homogeneous solution when combined. For those that form homogeneous solutions, indicate the type of forces that are involved. a. CH₃CH₂CH₂CH₂CH₃ and CH₃CH₂CH₂CH₂CH₂CH₃ b. CBr₄ and H₂O c. LiNO₃ and H₂O d. CH₃OH and CH₃CH₂CH₂CH₂CH₃

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1. Identify the nature of each compound in the pair: polar or nonpolar.
2. a. Both CH_3(CH_2)_3CH_3 and CH_3(CH_2)_5CH_3 are nonpolar hydrocarbons, so they will form a homogeneous solution due to dispersion forces.
3. b. CBr_4 is nonpolar, while H_2O is polar. These will not form a homogeneous solution due to the lack of common intermolecular forces.
4. c. LiNO_3 is an ionic compound, and H_2O is polar. They will form a homogeneous solution due to ion-dipole interactions.
5. d. CH_3OH is polar, and CH_3(CH_2)_3CH_3 is nonpolar. They will not form a homogeneous solution due to differing intermolecular forces.